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Security and privacy issues of blockchain-enabled fog and edge computing
Published in Muhammad Maaz Rehan, Mubashir Husain Rehmani, Blockchain-enabled Fog and Edge Computing, 2020
Imane Ameli, Nabil Benamar, Abdelhakim Senhaji Hafid
Monero [40] is a distributed cryptocurrency application that implements CryptoNote which uses a ring signature and one-time-key to hide the origin and destination addresses of transactions. Later the scheme was upgraded and used the traceable ring signature for preventing the double-spending attacks and to make the content of the transactions anonymous.
A blockchain-based transaction system with payment statistics and supervision
Published in Connection Science, 2022
Liutao Zhao, Jiawan Zhang, Lin Zhong
The Bitcoin (Nakamoto, 2019) and Ethereum (Wood, 2014) blockchain systems are the most successful application. In financial systems, privacy protection is very crucial. Plaintext transaction has many disadvantages. The difference among Ethereum and Bitcoin would be that Bitcoin is merely a currency, but Ethereum is a digital ledger that is being used by businesses to create new initiatives. Both Bitcoin and Ethereum are based on “blockchain” technologies, but Ethereum’s is significantly more reliable. For example, the disclosure of a user’s wealth will endanger his life and property safety; disclosure of the company’s economic status will lead to malicious competition; leakage of the country’s economic strength, will lead to a financial crisis. For museums, digital cultural relics exhibition lacks a complete authorisation verification mechanism, and these digital materials will be arbitrarily spread or even forged (Wang, Chen, et al., 2021; Zhaofeng et al., 2019). Therefore, it is necessary to protect transaction privacy. Monero (Noether, 2015; Noether & Mackenzie, 2016), Zerocoin (Miers et al., 2013) and Zerocash (Ben-Sasson et al., 2014) are typical blockchain systems with good privacy protection. The Monero system was originally built on CryptoNote, which hides the target and source of payment interactions via ring signatures and single-time keys. The strategy is dependent on confidential exchanges which are utilised on Bitcoin’s Elements side-chain, but it also enables their own use in ring signatures. Zerocoin is a Bitcoin-based cryptography option that allows for entirely anonymous monetary transactions. This approach is based on normal cryptography principles and therefore does not make any new providing valuable and otherwise alter Bitcoin’s security architecture. Zerocash is a derivative of Bitcoin that can be used at an equal scale. As a basis of its enhanced performance and efficiency, Zerocash allows for the complete replacement of standard Bitcoin transactions with untraceable equivalents.